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Ink marks on the paper
This problem can occur for several dierent reasons.
Horizontal smears on the front of coated paper
If a lot of ink is used on plain or coated paper, the paper absorbs the ink quickly and expands. As the printhead
moves over the paper, the printhead may come into contact with the paper and smear the printed image.
This problem is normally seen only on cut sheets of paper (not on roll paper).
Whenever you notice this problem, cancel the printing job immediately. Tap and also cancel the job from your
computer application. Soaked paper can damage the printhead.
If you notice poor print quality after this has happened, clean the printhead. See
Clean the printhead on page 59.
1. Check that the paper type you have loaded corresponds to the paper type selected in the front panel and in
your software. See View information about the paper on page 30.
2. Use a recommended paper type (see Order paper on page 67) and the correct print settings.
3. If using sheet paper, try rotating the sheet 90 degrees. The orientation of the paper bers may aect
performance.
4. Try changing to a thicker paper type, such as HP Heavyweight Coated Paper.
5. Select a paper type that is slightly thinner than the paper you have loaded; this will persuade the printer to
use less ink. Here are some example paper types in ascending order of thickness: Plain Paper, Coated Paper,
Heavyweight Coated Paper.
6. Try to increase the margins by relocating the image to the center of the page using your software
application.
Ink marks on the back of the paper
Clean the platen with a soft cloth. Clean each rib separately.
Black ink comes o when you touch the print
This problem may be caused by printing with matte black ink on glossy paper. The printer will not use matte
black ink if it knows that the paper will not retain it.
To be sure of avoiding matte black ink, you can select Photo Glossy Paper as the paper type (in the Photo Paper
category).
Edges of objects are stepped or not sharp
If edges of objects or lines appear to be poorly dened or lighter in density, and you have already set the print-
quality slider to Best.
84 Chapter 12 Troubleshooting print-quality issues ENWW
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